| // Copyright 2014 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #include <stddef.h> // For offsetof(). |
| |
| #include "../../include/fxcrt/fx_basic.h" |
| #include "../../../third_party/base/numerics/safe_math.h" |
| |
| // static |
| CFX_WideString::StringData* CFX_WideString::StringData::Create(int nLen) |
| { |
| // TODO(palmer): |nLen| should really be declared as |size_t|, or |
| // at least unsigned. |
| if (nLen == 0 || nLen < 0) { |
| return NULL; |
| } |
| |
| // Fixed portion of header plus a NUL wide char not in m_nAllocLength. |
| int overhead = offsetof(StringData, m_String) + sizeof(FX_WCHAR); |
| pdfium::base::CheckedNumeric<int> iSize = nLen; |
| iSize *= sizeof(FX_WCHAR); |
| iSize += overhead; |
| |
| // Now round to an 8-byte boundary. We'd expect that this is the minimum |
| // granularity of any of the underlying allocators, so there may be cases |
| // where we can save a re-alloc when adding a few characters to a string |
| // by using this otherwise wasted space. |
| iSize += 7; |
| int totalSize = iSize.ValueOrDie() & ~7; |
| int usableLen = (totalSize - overhead) / sizeof(FX_WCHAR); |
| FXSYS_assert(usableLen >= nLen); |
| |
| void* pData = FX_Alloc(FX_BYTE, iSize.ValueOrDie()); |
| if (!pData) { |
| return NULL; |
| } |
| return new (pData) StringData(nLen, usableLen); |
| } |
| CFX_WideString::~CFX_WideString() |
| { |
| if (m_pData) { |
| m_pData->Release(); |
| } |
| } |
| CFX_WideString::CFX_WideString(const CFX_WideString& stringSrc) |
| { |
| if (stringSrc.m_pData == NULL) { |
| m_pData = NULL; |
| return; |
| } |
| if (stringSrc.m_pData->m_nRefs >= 0) { |
| m_pData = stringSrc.m_pData; |
| m_pData->Retain(); |
| } else { |
| m_pData = NULL; |
| *this = stringSrc; |
| } |
| } |
| CFX_WideString::CFX_WideString(FX_LPCWSTR lpsz, FX_STRSIZE nLen) { |
| if (nLen < 0) { |
| nLen = lpsz ? FXSYS_wcslen(lpsz) : 0; |
| } |
| if (nLen) { |
| m_pData = StringData::Create(nLen); |
| if (m_pData) { |
| FXSYS_memcpy32(m_pData->m_String, lpsz, nLen * sizeof(FX_WCHAR)); |
| } |
| } else { |
| m_pData = NULL; |
| } |
| } |
| CFX_WideString::CFX_WideString(FX_WCHAR ch) |
| { |
| m_pData = StringData::Create(1); |
| if (m_pData) { |
| m_pData->m_String[0] = ch; |
| } |
| } |
| CFX_WideString::CFX_WideString(const CFX_WideStringC& str) |
| { |
| if (str.IsEmpty()) { |
| m_pData = NULL; |
| return; |
| } |
| m_pData = StringData::Create(str.GetLength()); |
| if (m_pData) { |
| FXSYS_memcpy32(m_pData->m_String, str.GetPtr(), str.GetLength()*sizeof(FX_WCHAR)); |
| } |
| } |
| CFX_WideString::CFX_WideString(const CFX_WideStringC& str1, const CFX_WideStringC& str2) |
| { |
| m_pData = NULL; |
| int nNewLen = str1.GetLength() + str2.GetLength(); |
| if (nNewLen == 0) { |
| return; |
| } |
| m_pData = StringData::Create(nNewLen); |
| if (m_pData) { |
| FXSYS_memcpy32(m_pData->m_String, str1.GetPtr(), str1.GetLength()*sizeof(FX_WCHAR)); |
| FXSYS_memcpy32(m_pData->m_String + str1.GetLength(), str2.GetPtr(), str2.GetLength()*sizeof(FX_WCHAR)); |
| } |
| } |
| void CFX_WideString::ReleaseBuffer(FX_STRSIZE nNewLength) |
| { |
| if (m_pData == NULL) { |
| return; |
| } |
| CopyBeforeWrite(); |
| if (nNewLength == -1) { |
| nNewLength = m_pData ? FXSYS_wcslen(m_pData->m_String) : 0; |
| } |
| if (nNewLength == 0) { |
| Empty(); |
| return; |
| } |
| FXSYS_assert(nNewLength <= m_pData->m_nAllocLength); |
| m_pData->m_nDataLength = nNewLength; |
| m_pData->m_String[nNewLength] = 0; |
| } |
| const CFX_WideString& CFX_WideString::operator=(FX_LPCWSTR lpsz) |
| { |
| if (lpsz == NULL || lpsz[0] == 0) { |
| Empty(); |
| } else { |
| AssignCopy(FXSYS_wcslen(lpsz), lpsz); |
| } |
| return *this; |
| } |
| const CFX_WideString& CFX_WideString::operator=(const CFX_WideStringC& stringSrc) |
| { |
| if (stringSrc.IsEmpty()) { |
| Empty(); |
| } else { |
| AssignCopy(stringSrc.GetLength(), stringSrc.GetPtr()); |
| } |
| return *this; |
| } |
| const CFX_WideString& CFX_WideString::operator=(const CFX_WideString& stringSrc) |
| { |
| if (m_pData == stringSrc.m_pData) { |
| return *this; |
| } |
| if (stringSrc.IsEmpty()) { |
| Empty(); |
| } else if ((m_pData && m_pData->m_nRefs < 0) || |
| (stringSrc.m_pData && stringSrc.m_pData->m_nRefs < 0)) { |
| AssignCopy(stringSrc.m_pData->m_nDataLength, stringSrc.m_pData->m_String); |
| } else { |
| Empty(); |
| m_pData = stringSrc.m_pData; |
| if (m_pData) { |
| m_pData->Retain(); |
| } |
| } |
| return *this; |
| } |
| const CFX_WideString& CFX_WideString::operator+=(FX_WCHAR ch) |
| { |
| ConcatInPlace(1, &ch); |
| return *this; |
| } |
| const CFX_WideString& CFX_WideString::operator+=(FX_LPCWSTR lpsz) |
| { |
| if (lpsz) { |
| ConcatInPlace(FXSYS_wcslen(lpsz), lpsz); |
| } |
| return *this; |
| } |
| const CFX_WideString& CFX_WideString::operator+=(const CFX_WideString& string) |
| { |
| if (string.m_pData == NULL) { |
| return *this; |
| } |
| ConcatInPlace(string.m_pData->m_nDataLength, string.m_pData->m_String); |
| return *this; |
| } |
| const CFX_WideString& CFX_WideString::operator+=(const CFX_WideStringC& string) |
| { |
| if (string.IsEmpty()) { |
| return *this; |
| } |
| ConcatInPlace(string.GetLength(), string.GetPtr()); |
| return *this; |
| } |
| bool CFX_WideString::Equal(const wchar_t* ptr) const |
| { |
| if (!m_pData) { |
| return !ptr || ptr[0] == L'\0'; |
| } |
| if (!ptr) { |
| return m_pData->m_nDataLength == 0; |
| } |
| return wcslen(ptr) == m_pData->m_nDataLength && |
| wmemcmp(ptr, m_pData->m_String, m_pData->m_nDataLength) == 0; |
| } |
| bool CFX_WideString::Equal(const CFX_WideStringC& str) const |
| { |
| if (m_pData == NULL) { |
| return str.IsEmpty(); |
| } |
| return str.GetLength() == m_pData->m_nDataLength && |
| wmemcmp(str.GetPtr(), m_pData->m_String, m_pData->m_nDataLength) == 0; |
| } |
| bool CFX_WideString::Equal(const CFX_WideString& other) const |
| { |
| if (IsEmpty()) { |
| return other.IsEmpty(); |
| } |
| if (other.IsEmpty()) { |
| return false; |
| } |
| return other.m_pData->m_nDataLength == m_pData->m_nDataLength && |
| wmemcmp(other.m_pData->m_String, |
| m_pData->m_String, |
| m_pData->m_nDataLength) == 0; |
| } |
| void CFX_WideString::Empty() |
| { |
| if (m_pData) { |
| m_pData->Release(); |
| m_pData = NULL; |
| } |
| } |
| void CFX_WideString::ConcatInPlace(FX_STRSIZE nSrcLen, FX_LPCWSTR lpszSrcData) |
| { |
| if (nSrcLen == 0 || lpszSrcData == NULL) { |
| return; |
| } |
| if (m_pData == NULL) { |
| m_pData = StringData::Create(nSrcLen); |
| if (m_pData) { |
| FXSYS_memcpy32(m_pData->m_String, lpszSrcData, nSrcLen * sizeof(FX_WCHAR)); |
| } |
| return; |
| } |
| if (m_pData->m_nRefs > 1 || m_pData->m_nDataLength + nSrcLen > m_pData->m_nAllocLength) { |
| StringData* pOldData = m_pData; |
| ConcatCopy(m_pData->m_nDataLength, m_pData->m_String, nSrcLen, lpszSrcData); |
| pOldData->Release(); |
| } else { |
| FXSYS_memcpy32(m_pData->m_String + m_pData->m_nDataLength, lpszSrcData, nSrcLen * sizeof(FX_WCHAR)); |
| m_pData->m_nDataLength += nSrcLen; |
| m_pData->m_String[m_pData->m_nDataLength] = 0; |
| } |
| } |
| void CFX_WideString::ConcatCopy(FX_STRSIZE nSrc1Len, FX_LPCWSTR lpszSrc1Data, |
| FX_STRSIZE nSrc2Len, FX_LPCWSTR lpszSrc2Data) |
| { |
| FX_STRSIZE nNewLen = nSrc1Len + nSrc2Len; |
| if (nNewLen == 0) { |
| return; |
| } |
| m_pData = StringData::Create(nNewLen); |
| if (m_pData) { |
| FXSYS_memcpy32(m_pData->m_String, lpszSrc1Data, nSrc1Len * sizeof(FX_WCHAR)); |
| FXSYS_memcpy32(m_pData->m_String + nSrc1Len, lpszSrc2Data, nSrc2Len * sizeof(FX_WCHAR)); |
| } |
| } |
| void CFX_WideString::CopyBeforeWrite() |
| { |
| if (m_pData == NULL || m_pData->m_nRefs <= 1) { |
| return; |
| } |
| StringData* pData = m_pData; |
| m_pData->Release(); |
| FX_STRSIZE nDataLength = pData->m_nDataLength; |
| m_pData = StringData::Create(nDataLength); |
| if (m_pData != NULL) { |
| FXSYS_memcpy32(m_pData->m_String, pData->m_String, (nDataLength + 1) * sizeof(FX_WCHAR)); |
| } |
| } |
| void CFX_WideString::AllocBeforeWrite(FX_STRSIZE nLen) |
| { |
| if (m_pData && m_pData->m_nRefs <= 1 && m_pData->m_nAllocLength >= nLen) { |
| return; |
| } |
| Empty(); |
| m_pData = StringData::Create(nLen); |
| } |
| void CFX_WideString::AssignCopy(FX_STRSIZE nSrcLen, FX_LPCWSTR lpszSrcData) |
| { |
| AllocBeforeWrite(nSrcLen); |
| FXSYS_memcpy32(m_pData->m_String, lpszSrcData, nSrcLen * sizeof(FX_WCHAR)); |
| m_pData->m_nDataLength = nSrcLen; |
| m_pData->m_String[nSrcLen] = 0; |
| } |
| int CFX_WideString::Compare(FX_LPCWSTR lpsz) const |
| { |
| if (m_pData == NULL) { |
| return (lpsz == NULL || lpsz[0] == 0) ? 0 : -1; |
| } |
| return FXSYS_wcscmp(m_pData->m_String, lpsz); |
| } |
| CFX_ByteString CFX_WideString::UTF8Encode() const |
| { |
| return FX_UTF8Encode(*this); |
| } |
| CFX_ByteString CFX_WideString::UTF16LE_Encode() const |
| { |
| if (m_pData == NULL) { |
| return CFX_ByteString(FX_BSTRC("\0\0")); |
| } |
| int len = m_pData->m_nDataLength; |
| CFX_ByteString result; |
| FX_LPSTR buffer = result.GetBuffer(len * 2 + 2); |
| for (int i = 0; i < len; i ++) { |
| buffer[i * 2] = m_pData->m_String[i] & 0xff; |
| buffer[i * 2 + 1] = m_pData->m_String[i] >> 8; |
| } |
| buffer[len * 2] = 0; |
| buffer[len * 2 + 1] = 0; |
| result.ReleaseBuffer(len * 2 + 2); |
| return result; |
| } |
| void CFX_WideString::ConvertFrom(const CFX_ByteString& str, CFX_CharMap* pCharMap) |
| { |
| if (pCharMap == NULL) { |
| pCharMap = CFX_CharMap::GetDefaultMapper(); |
| } |
| *this = pCharMap->m_GetWideString(pCharMap, str); |
| } |
| void CFX_WideString::Reserve(FX_STRSIZE len) |
| { |
| GetBuffer(len); |
| ReleaseBuffer(GetLength()); |
| } |
| FX_LPWSTR CFX_WideString::GetBuffer(FX_STRSIZE nMinBufLength) |
| { |
| if (m_pData == NULL && nMinBufLength == 0) { |
| return NULL; |
| } |
| if (m_pData && m_pData->m_nRefs <= 1 && m_pData->m_nAllocLength >= nMinBufLength) { |
| return m_pData->m_String; |
| } |
| if (m_pData == NULL) { |
| m_pData = StringData::Create(nMinBufLength); |
| if (!m_pData) { |
| return NULL; |
| } |
| m_pData->m_nDataLength = 0; |
| m_pData->m_String[0] = 0; |
| return m_pData->m_String; |
| } |
| StringData* pOldData = m_pData; |
| FX_STRSIZE nOldLen = pOldData->m_nDataLength; |
| if (nMinBufLength < nOldLen) { |
| nMinBufLength = nOldLen; |
| } |
| m_pData = StringData::Create(nMinBufLength); |
| if (!m_pData) { |
| return NULL; |
| } |
| FXSYS_memcpy32(m_pData->m_String, pOldData->m_String, (nOldLen + 1)*sizeof(FX_WCHAR)); |
| m_pData->m_nDataLength = nOldLen; |
| pOldData->Release(); |
| return m_pData->m_String; |
| } |
| CFX_WideString CFX_WideString::FromLocal(const char* str, FX_STRSIZE len) |
| { |
| CFX_WideString result; |
| result.ConvertFrom(CFX_ByteString(str, len)); |
| return result; |
| } |
| CFX_WideString CFX_WideString::FromUTF8(const char* str, FX_STRSIZE len) |
| { |
| if (!str || 0 == len) { |
| return CFX_WideString(); |
| } |
| |
| CFX_UTF8Decoder decoder; |
| for (FX_STRSIZE i = 0; i < len; i ++) { |
| decoder.Input(str[i]); |
| } |
| return decoder.GetResult(); |
| } |
| CFX_WideString CFX_WideString::FromUTF16LE(const unsigned short* wstr, FX_STRSIZE wlen) |
| { |
| if (!wstr || 0 == wlen) { |
| return CFX_WideString(); |
| } |
| |
| CFX_WideString result; |
| FX_WCHAR* buf = result.GetBuffer(wlen); |
| for (int i = 0; i < wlen; i ++) { |
| buf[i] = wstr[i]; |
| } |
| result.ReleaseBuffer(wlen); |
| return result; |
| } |
| FX_STRSIZE CFX_WideString::WStringLength(const unsigned short* str) |
| { |
| FX_STRSIZE len = 0; |
| if (str) |
| while (str[len]) len++; |
| return len; |
| } |
| |
| |
| |
| void CFX_WideString::AllocCopy(CFX_WideString& dest, FX_STRSIZE nCopyLen, FX_STRSIZE nCopyIndex) const |
| { |
| // |FX_STRSIZE| is currently typedef'd as in |int|. TODO(palmer): It |
| // should be a |size_t|, or at least unsigned. |
| if (nCopyLen == 0 || nCopyLen < 0) { |
| return; |
| } |
| pdfium::base::CheckedNumeric<FX_STRSIZE> iSize = static_cast<FX_STRSIZE>(sizeof(FX_WCHAR)); |
| iSize *= nCopyLen; |
| ASSERT(dest.m_pData == NULL); |
| dest.m_pData = StringData::Create(nCopyLen); |
| if (dest.m_pData) { |
| FXSYS_memcpy32(dest.m_pData->m_String, m_pData->m_String + nCopyIndex, iSize.ValueOrDie()); |
| } |
| } |
| CFX_WideString CFX_WideString::Left(FX_STRSIZE nCount) const |
| { |
| if (m_pData == NULL) { |
| return CFX_WideString(); |
| } |
| if (nCount < 0) { |
| nCount = 0; |
| } |
| if (nCount >= m_pData->m_nDataLength) { |
| return *this; |
| } |
| CFX_WideString dest; |
| AllocCopy(dest, nCount, 0); |
| return dest; |
| } |
| CFX_WideString CFX_WideString::Mid(FX_STRSIZE nFirst) const |
| { |
| return Mid(nFirst, m_pData->m_nDataLength - nFirst); |
| } |
| CFX_WideString CFX_WideString::Mid(FX_STRSIZE nFirst, FX_STRSIZE nCount) const |
| { |
| if (m_pData == NULL) { |
| return CFX_WideString(); |
| } |
| if (nFirst < 0) { |
| nFirst = 0; |
| } |
| if (nCount < 0) { |
| nCount = 0; |
| } |
| if (nFirst + nCount > m_pData->m_nDataLength) { |
| nCount = m_pData->m_nDataLength - nFirst; |
| } |
| if (nFirst > m_pData->m_nDataLength) { |
| nCount = 0; |
| } |
| if (nFirst == 0 && nFirst + nCount == m_pData->m_nDataLength) { |
| return *this; |
| } |
| CFX_WideString dest; |
| AllocCopy(dest, nCount, nFirst); |
| return dest; |
| } |
| CFX_WideString CFX_WideString::Right(FX_STRSIZE nCount) const |
| { |
| if (m_pData == NULL) { |
| return CFX_WideString(); |
| } |
| if (nCount < 0) { |
| nCount = 0; |
| } |
| if (nCount >= m_pData->m_nDataLength) { |
| return *this; |
| } |
| CFX_WideString dest; |
| AllocCopy(dest, nCount, m_pData->m_nDataLength - nCount); |
| return dest; |
| } |
| int CFX_WideString::CompareNoCase(FX_LPCWSTR lpsz) const |
| { |
| if (m_pData == NULL) { |
| return (lpsz == NULL || lpsz[0] == 0) ? 0 : -1; |
| } |
| return FXSYS_wcsicmp(m_pData->m_String, lpsz); |
| } |
| int CFX_WideString::Compare(const CFX_WideString& str) const |
| { |
| if (m_pData == NULL) { |
| if (str.m_pData == NULL) { |
| return 0; |
| } |
| return -1; |
| } else if (str.m_pData == NULL) { |
| return 1; |
| } |
| int this_len = m_pData->m_nDataLength; |
| int that_len = str.m_pData->m_nDataLength; |
| int min_len = this_len < that_len ? this_len : that_len; |
| for (int i = 0; i < min_len; i ++) { |
| if (m_pData->m_String[i] < str.m_pData->m_String[i]) { |
| return -1; |
| } else if (m_pData->m_String[i] > str.m_pData->m_String[i]) { |
| return 1; |
| } |
| } |
| if (this_len < that_len) { |
| return -1; |
| } else if (this_len > that_len) { |
| return 1; |
| } |
| return 0; |
| } |
| void CFX_WideString::SetAt(FX_STRSIZE nIndex, FX_WCHAR ch) |
| { |
| if (m_pData == NULL) { |
| return; |
| } |
| ASSERT(nIndex >= 0); |
| ASSERT(nIndex < m_pData->m_nDataLength); |
| CopyBeforeWrite(); |
| m_pData->m_String[nIndex] = ch; |
| } |
| void CFX_WideString::MakeLower() |
| { |
| if (m_pData == NULL) { |
| return; |
| } |
| CopyBeforeWrite(); |
| if (GetLength() < 1) { |
| return; |
| } |
| FXSYS_wcslwr(m_pData->m_String); |
| } |
| void CFX_WideString::MakeUpper() |
| { |
| if (m_pData == NULL) { |
| return; |
| } |
| CopyBeforeWrite(); |
| if (GetLength() < 1) { |
| return; |
| } |
| FXSYS_wcsupr(m_pData->m_String); |
| } |
| FX_STRSIZE CFX_WideString::Find(FX_LPCWSTR lpszSub, FX_STRSIZE nStart) const |
| { |
| FX_STRSIZE nLength = GetLength(); |
| if (nLength < 1 || nStart > nLength) { |
| return -1; |
| } |
| FX_LPCWSTR lpsz = FXSYS_wcsstr(m_pData->m_String + nStart, lpszSub); |
| return (lpsz == NULL) ? -1 : (int)(lpsz - m_pData->m_String); |
| } |
| FX_STRSIZE CFX_WideString::Find(FX_WCHAR ch, FX_STRSIZE nStart) const |
| { |
| if (m_pData == NULL) { |
| return -1; |
| } |
| FX_STRSIZE nLength = m_pData->m_nDataLength; |
| if (nStart >= nLength) { |
| return -1; |
| } |
| FX_LPCWSTR lpsz = FXSYS_wcschr(m_pData->m_String + nStart, ch); |
| return (lpsz == NULL) ? -1 : (int)(lpsz - m_pData->m_String); |
| } |
| void CFX_WideString::TrimRight(FX_LPCWSTR lpszTargetList) |
| { |
| FXSYS_assert(lpszTargetList != NULL); |
| if (m_pData == NULL || *lpszTargetList == 0) { |
| return; |
| } |
| CopyBeforeWrite(); |
| FX_STRSIZE len = GetLength(); |
| if (len < 1) { |
| return; |
| } |
| FX_STRSIZE pos = len; |
| while (pos) { |
| if (FXSYS_wcschr(lpszTargetList, m_pData->m_String[pos - 1]) == NULL) { |
| break; |
| } |
| pos --; |
| } |
| if (pos < len) { |
| m_pData->m_String[pos] = 0; |
| m_pData->m_nDataLength = pos; |
| } |
| } |
| void CFX_WideString::TrimRight(FX_WCHAR chTarget) |
| { |
| FX_WCHAR str[2] = {chTarget, 0}; |
| TrimRight(str); |
| } |
| void CFX_WideString::TrimRight() |
| { |
| TrimRight(L"\x09\x0a\x0b\x0c\x0d\x20"); |
| } |
| void CFX_WideString::TrimLeft(FX_LPCWSTR lpszTargets) |
| { |
| FXSYS_assert(lpszTargets != NULL); |
| if (m_pData == NULL || *lpszTargets == 0) { |
| return; |
| } |
| CopyBeforeWrite(); |
| if (GetLength() < 1) { |
| return; |
| } |
| FX_LPCWSTR lpsz = m_pData->m_String; |
| while (*lpsz != 0) { |
| if (FXSYS_wcschr(lpszTargets, *lpsz) == NULL) { |
| break; |
| } |
| lpsz ++; |
| } |
| if (lpsz != m_pData->m_String) { |
| int nDataLength = m_pData->m_nDataLength - (FX_STRSIZE)(lpsz - m_pData->m_String); |
| FXSYS_memmove32(m_pData->m_String, lpsz, (nDataLength + 1)*sizeof(FX_WCHAR)); |
| m_pData->m_nDataLength = nDataLength; |
| } |
| } |
| void CFX_WideString::TrimLeft(FX_WCHAR chTarget) |
| { |
| FX_WCHAR str[2] = {chTarget, 0}; |
| TrimLeft(str); |
| } |
| void CFX_WideString::TrimLeft() |
| { |
| TrimLeft(L"\x09\x0a\x0b\x0c\x0d\x20"); |
| } |
| FX_STRSIZE CFX_WideString::Replace(FX_LPCWSTR lpszOld, FX_LPCWSTR lpszNew) |
| { |
| if (GetLength() < 1) { |
| return 0; |
| } |
| if (lpszOld == NULL) { |
| return 0; |
| } |
| FX_STRSIZE nSourceLen = FXSYS_wcslen(lpszOld); |
| if (nSourceLen == 0) { |
| return 0; |
| } |
| FX_STRSIZE nReplacementLen = lpszNew ? FXSYS_wcslen(lpszNew) : 0; |
| FX_STRSIZE nCount = 0; |
| FX_LPWSTR lpszStart = m_pData->m_String; |
| FX_LPWSTR lpszEnd = m_pData->m_String + m_pData->m_nDataLength; |
| FX_LPWSTR lpszTarget; |
| { |
| while ((lpszTarget = (FX_LPWSTR)FXSYS_wcsstr(lpszStart, lpszOld)) != NULL && lpszStart < lpszEnd) { |
| nCount++; |
| lpszStart = lpszTarget + nSourceLen; |
| } |
| } |
| if (nCount > 0) { |
| CopyBeforeWrite(); |
| FX_STRSIZE nOldLength = m_pData->m_nDataLength; |
| FX_STRSIZE nNewLength = nOldLength + (nReplacementLen - nSourceLen) * nCount; |
| if (m_pData->m_nAllocLength < nNewLength || m_pData->m_nRefs > 1) { |
| StringData* pOldData = m_pData; |
| FX_LPCWSTR pstr = m_pData->m_String; |
| m_pData = StringData::Create(nNewLength); |
| if (!m_pData) { |
| return 0; |
| } |
| FXSYS_memcpy32(m_pData->m_String, pstr, pOldData->m_nDataLength * sizeof(FX_WCHAR)); |
| pOldData->Release(); |
| } |
| lpszStart = m_pData->m_String; |
| lpszEnd = m_pData->m_String + FX_MAX(m_pData->m_nDataLength, nNewLength); |
| { |
| while ((lpszTarget = (FX_LPWSTR)FXSYS_wcsstr(lpszStart, lpszOld)) != NULL && lpszStart < lpszEnd) { |
| FX_STRSIZE nBalance = nOldLength - (FX_STRSIZE)(lpszTarget - m_pData->m_String + nSourceLen); |
| FXSYS_memmove32(lpszTarget + nReplacementLen, lpszTarget + nSourceLen, nBalance * sizeof(FX_WCHAR)); |
| FXSYS_memcpy32(lpszTarget, lpszNew, nReplacementLen * sizeof(FX_WCHAR)); |
| lpszStart = lpszTarget + nReplacementLen; |
| lpszStart[nBalance] = 0; |
| nOldLength += (nReplacementLen - nSourceLen); |
| } |
| } |
| ASSERT(m_pData->m_String[nNewLength] == 0); |
| m_pData->m_nDataLength = nNewLength; |
| } |
| return nCount; |
| } |
| FX_STRSIZE CFX_WideString::Insert(FX_STRSIZE nIndex, FX_WCHAR ch) |
| { |
| CopyBeforeWrite(); |
| if (nIndex < 0) { |
| nIndex = 0; |
| } |
| FX_STRSIZE nNewLength = GetLength(); |
| if (nIndex > nNewLength) { |
| nIndex = nNewLength; |
| } |
| nNewLength++; |
| if (m_pData == NULL || m_pData->m_nAllocLength < nNewLength) { |
| StringData* pOldData = m_pData; |
| FX_LPCWSTR pstr = m_pData->m_String; |
| m_pData = StringData::Create(nNewLength); |
| if (!m_pData) { |
| return 0; |
| } |
| if(pOldData != NULL) { |
| FXSYS_memmove32(m_pData->m_String, pstr, (pOldData->m_nDataLength + 1)*sizeof(FX_WCHAR)); |
| pOldData->Release(); |
| } else { |
| m_pData->m_String[0] = 0; |
| } |
| } |
| FXSYS_memmove32(m_pData->m_String + nIndex + 1, |
| m_pData->m_String + nIndex, (nNewLength - nIndex)*sizeof(FX_WCHAR)); |
| m_pData->m_String[nIndex] = ch; |
| m_pData->m_nDataLength = nNewLength; |
| return nNewLength; |
| } |
| FX_STRSIZE CFX_WideString::Delete(FX_STRSIZE nIndex, FX_STRSIZE nCount) |
| { |
| if (GetLength() < 1) { |
| return 0; |
| } |
| if (nIndex < 0) { |
| nIndex = 0; |
| } |
| FX_STRSIZE nOldLength = m_pData->m_nDataLength; |
| if (nCount > 0 && nIndex < nOldLength) { |
| CopyBeforeWrite(); |
| int nBytesToCopy = nOldLength - (nIndex + nCount) + 1; |
| FXSYS_memmove32(m_pData->m_String + nIndex, |
| m_pData->m_String + nIndex + nCount, nBytesToCopy * sizeof(FX_WCHAR)); |
| m_pData->m_nDataLength = nOldLength - nCount; |
| } |
| return m_pData->m_nDataLength; |
| } |
| FX_STRSIZE CFX_WideString::Remove(FX_WCHAR chRemove) |
| { |
| if (m_pData == NULL) { |
| return 0; |
| } |
| CopyBeforeWrite(); |
| if (GetLength() < 1) { |
| return 0; |
| } |
| FX_LPWSTR pstrSource = m_pData->m_String; |
| FX_LPWSTR pstrDest = m_pData->m_String; |
| FX_LPWSTR pstrEnd = m_pData->m_String + m_pData->m_nDataLength; |
| while (pstrSource < pstrEnd) { |
| if (*pstrSource != chRemove) { |
| *pstrDest = *pstrSource; |
| pstrDest ++; |
| } |
| pstrSource ++; |
| } |
| *pstrDest = 0; |
| FX_STRSIZE nCount = (FX_STRSIZE)(pstrSource - pstrDest); |
| m_pData->m_nDataLength -= nCount; |
| return nCount; |
| } |
| #define FORCE_ANSI 0x10000 |
| #define FORCE_UNICODE 0x20000 |
| #define FORCE_INT64 0x40000 |
| void CFX_WideString::FormatV(FX_LPCWSTR lpszFormat, va_list argList) |
| { |
| va_list argListSave; |
| #if defined(__ARMCC_VERSION) || (!defined(_MSC_VER) && (_FX_CPU_ == _FX_X64_ || _FX_CPU_ == _FX_IA64_ || _FX_CPU_ == _FX_ARM64_)) || defined(__native_client__) |
| va_copy(argListSave, argList); |
| #else |
| argListSave = argList; |
| #endif |
| int nMaxLen = 0; |
| for (FX_LPCWSTR lpsz = lpszFormat; *lpsz != 0; lpsz ++) { |
| if (*lpsz != '%' || *(lpsz = lpsz + 1) == '%') { |
| nMaxLen += FXSYS_wcslen(lpsz); |
| continue; |
| } |
| int nItemLen = 0; |
| int nWidth = 0; |
| for (; *lpsz != 0; lpsz ++) { |
| if (*lpsz == '#') { |
| nMaxLen += 2; |
| } else if (*lpsz == '*') { |
| nWidth = va_arg(argList, int); |
| } else if (*lpsz == '-' || *lpsz == '+' || *lpsz == '0' || |
| *lpsz == ' ') |
| ; |
| else { |
| break; |
| } |
| } |
| if (nWidth == 0) { |
| nWidth = FXSYS_wtoi(lpsz); |
| for (; *lpsz != 0 && (*lpsz) <= '9' && (*lpsz) >= '0'; lpsz ++) |
| ; |
| } |
| if (nWidth < 0 || nWidth > 128 * 1024) { |
| lpszFormat = L"Bad width"; |
| nMaxLen = 10; |
| break; |
| } |
| int nPrecision = 0; |
| if (*lpsz == '.') { |
| lpsz ++; |
| if (*lpsz == '*') { |
| nPrecision = va_arg(argList, int); |
| lpsz ++; |
| } else { |
| nPrecision = FXSYS_wtoi(lpsz); |
| for (; *lpsz != 0 && (*lpsz) >= '0' && (*lpsz) <= '9'; lpsz ++) |
| ; |
| } |
| } |
| if (nPrecision < 0 || nPrecision > 128 * 1024) { |
| lpszFormat = L"Bad precision"; |
| nMaxLen = 14; |
| break; |
| } |
| int nModifier = 0; |
| if (*lpsz == L'I' && *(lpsz + 1) == L'6' && *(lpsz + 2) == L'4') { |
| lpsz += 3; |
| nModifier = FORCE_INT64; |
| } else { |
| switch (*lpsz) { |
| case 'h': |
| nModifier = FORCE_ANSI; |
| lpsz ++; |
| break; |
| case 'l': |
| nModifier = FORCE_UNICODE; |
| lpsz ++; |
| break; |
| case 'F': |
| case 'N': |
| case 'L': |
| lpsz ++; |
| break; |
| } |
| } |
| switch (*lpsz | nModifier) { |
| case 'c': |
| case 'C': |
| nItemLen = 2; |
| va_arg(argList, int); |
| break; |
| case 'c'|FORCE_ANSI: |
| case 'C'|FORCE_ANSI: |
| nItemLen = 2; |
| va_arg(argList, int); |
| break; |
| case 'c'|FORCE_UNICODE: |
| case 'C'|FORCE_UNICODE: |
| nItemLen = 2; |
| va_arg(argList, int); |
| break; |
| case 's': { |
| FX_LPCWSTR pstrNextArg = va_arg(argList, FX_LPCWSTR); |
| if (pstrNextArg == NULL) { |
| nItemLen = 6; |
| } else { |
| nItemLen = FXSYS_wcslen(pstrNextArg); |
| if (nItemLen < 1) { |
| nItemLen = 1; |
| } |
| } |
| } |
| break; |
| case 'S': { |
| FX_LPCSTR pstrNextArg = va_arg(argList, FX_LPCSTR); |
| if (pstrNextArg == NULL) { |
| nItemLen = 6; |
| } else { |
| nItemLen = FXSYS_strlen(pstrNextArg); |
| if (nItemLen < 1) { |
| nItemLen = 1; |
| } |
| } |
| } |
| break; |
| case 's'|FORCE_ANSI: |
| case 'S'|FORCE_ANSI: { |
| FX_LPCSTR pstrNextArg = va_arg(argList, FX_LPCSTR); |
| if (pstrNextArg == NULL) { |
| nItemLen = 6; |
| } else { |
| nItemLen = FXSYS_strlen(pstrNextArg); |
| if (nItemLen < 1) { |
| nItemLen = 1; |
| } |
| } |
| } |
| break; |
| case 's'|FORCE_UNICODE: |
| case 'S'|FORCE_UNICODE: { |
| FX_LPWSTR pstrNextArg = va_arg(argList, FX_LPWSTR); |
| if (pstrNextArg == NULL) { |
| nItemLen = 6; |
| } else { |
| nItemLen = FXSYS_wcslen(pstrNextArg); |
| if (nItemLen < 1) { |
| nItemLen = 1; |
| } |
| } |
| } |
| break; |
| } |
| if (nItemLen != 0) { |
| if (nPrecision != 0 && nItemLen > nPrecision) { |
| nItemLen = nPrecision; |
| } |
| if (nItemLen < nWidth) { |
| nItemLen = nWidth; |
| } |
| } else { |
| switch (*lpsz) { |
| case 'd': |
| case 'i': |
| case 'u': |
| case 'x': |
| case 'X': |
| case 'o': |
| if (nModifier & FORCE_INT64) { |
| va_arg(argList, FX_INT64); |
| } else { |
| va_arg(argList, int); |
| } |
| nItemLen = 32; |
| if (nItemLen < nWidth + nPrecision) { |
| nItemLen = nWidth + nPrecision; |
| } |
| break; |
| case 'a': |
| case 'A': |
| case 'e': |
| case 'E': |
| case 'g': |
| case 'G': |
| va_arg(argList, double); |
| nItemLen = 128; |
| if (nItemLen < nWidth + nPrecision) { |
| nItemLen = nWidth + nPrecision; |
| } |
| break; |
| case 'f': |
| if (nWidth + nPrecision > 100) { |
| nItemLen = nPrecision + nWidth + 128; |
| } else { |
| double f; |
| char pszTemp[256]; |
| f = va_arg(argList, double); |
| FXSYS_snprintf(pszTemp, sizeof(pszTemp), "%*.*f", nWidth, nPrecision + 6, f ); |
| nItemLen = FXSYS_strlen(pszTemp); |
| } |
| break; |
| case 'p': |
| va_arg(argList, void*); |
| nItemLen = 32; |
| if (nItemLen < nWidth + nPrecision) { |
| nItemLen = nWidth + nPrecision; |
| } |
| break; |
| case 'n': |
| va_arg(argList, int*); |
| break; |
| } |
| } |
| nMaxLen += nItemLen; |
| } |
| GetBuffer(nMaxLen); |
| if (m_pData) { |
| FXSYS_vswprintf((wchar_t*)m_pData->m_String, nMaxLen + 1, (const wchar_t*)lpszFormat, argListSave); |
| ReleaseBuffer(); |
| } |
| va_end(argListSave); |
| } |
| void CFX_WideString::Format(FX_LPCWSTR lpszFormat, ...) |
| { |
| va_list argList; |
| va_start(argList, lpszFormat); |
| FormatV(lpszFormat, argList); |
| va_end(argList); |
| } |
| FX_FLOAT FX_wtof(FX_LPCWSTR str, int len) |
| { |
| if (len == 0) { |
| return 0.0; |
| } |
| int cc = 0; |
| FX_BOOL bNegative = FALSE; |
| if (str[0] == '+') { |
| cc++; |
| } else if (str[0] == '-') { |
| bNegative = TRUE; |
| cc++; |
| } |
| int integer = 0; |
| while (cc < len) { |
| if (str[cc] == '.') { |
| break; |
| } |
| integer = integer * 10 + str[cc] - '0'; |
| cc ++; |
| } |
| FX_FLOAT fraction = 0; |
| if (str[cc] == '.') { |
| cc ++; |
| FX_FLOAT scale = 0.1f; |
| while (cc < len) { |
| fraction += scale * (str[cc] - '0'); |
| scale *= 0.1f; |
| cc ++; |
| } |
| } |
| fraction += (FX_FLOAT)integer; |
| return bNegative ? -fraction : fraction; |
| } |
| int CFX_WideString::GetInteger() const |
| { |
| if (m_pData == NULL) { |
| return 0; |
| } |
| return FXSYS_wtoi(m_pData->m_String); |
| } |
| FX_FLOAT CFX_WideString::GetFloat() const |
| { |
| if (m_pData == NULL) { |
| return 0.0; |
| } |
| return FX_wtof(m_pData->m_String, m_pData->m_nDataLength); |
| } |
| static CFX_ByteString _DefMap_GetByteString(CFX_CharMap* pCharMap, const CFX_WideString& widestr) |
| { |
| int src_len = widestr.GetLength(); |
| int codepage = pCharMap->m_GetCodePage ? pCharMap->m_GetCodePage() : 0; |
| int dest_len = FXSYS_WideCharToMultiByte(codepage, 0, widestr.c_str(), src_len, NULL, 0, NULL, NULL); |
| if (dest_len == 0) { |
| return CFX_ByteString(); |
| } |
| CFX_ByteString bytestr; |
| FX_LPSTR dest_buf = bytestr.GetBuffer(dest_len); |
| FXSYS_WideCharToMultiByte(codepage, 0, widestr.c_str(), src_len, dest_buf, dest_len, NULL, NULL); |
| bytestr.ReleaseBuffer(dest_len); |
| return bytestr; |
| } |
| static CFX_WideString _DefMap_GetWideString(CFX_CharMap* pCharMap, const CFX_ByteString& bytestr) |
| { |
| int src_len = bytestr.GetLength(); |
| int codepage = pCharMap->m_GetCodePage ? pCharMap->m_GetCodePage() : 0; |
| int dest_len = FXSYS_MultiByteToWideChar(codepage, 0, bytestr, src_len, NULL, 0); |
| if (dest_len == 0) { |
| return CFX_WideString(); |
| } |
| CFX_WideString widestr; |
| FX_LPWSTR dest_buf = widestr.GetBuffer(dest_len); |
| FXSYS_MultiByteToWideChar(codepage, 0, bytestr, src_len, dest_buf, dest_len); |
| widestr.ReleaseBuffer(dest_len); |
| return widestr; |
| } |
| static int _DefMap_GetGBKCodePage() |
| { |
| return 936; |
| } |
| static int _DefMap_GetUHCCodePage() |
| { |
| return 949; |
| } |
| static int _DefMap_GetJISCodePage() |
| { |
| return 932; |
| } |
| static int _DefMap_GetBig5CodePage() |
| { |
| return 950; |
| } |
| static const CFX_CharMap g_DefaultMapper = {&_DefMap_GetWideString, &_DefMap_GetByteString, NULL}; |
| static const CFX_CharMap g_DefaultGBKMapper = {&_DefMap_GetWideString, &_DefMap_GetByteString, &_DefMap_GetGBKCodePage}; |
| static const CFX_CharMap g_DefaultJISMapper = {&_DefMap_GetWideString, &_DefMap_GetByteString, &_DefMap_GetJISCodePage}; |
| static const CFX_CharMap g_DefaultUHCMapper = {&_DefMap_GetWideString, &_DefMap_GetByteString, &_DefMap_GetUHCCodePage}; |
| static const CFX_CharMap g_DefaultBig5Mapper = {&_DefMap_GetWideString, &_DefMap_GetByteString, &_DefMap_GetBig5CodePage}; |
| CFX_CharMap* CFX_CharMap::GetDefaultMapper(FX_INT32 codepage) |
| { |
| switch (codepage) { |
| case 0: |
| return (CFX_CharMap*)&g_DefaultMapper; |
| case 932: |
| return (CFX_CharMap*)&g_DefaultJISMapper; |
| case 936: |
| return (CFX_CharMap*)&g_DefaultGBKMapper; |
| case 949: |
| return (CFX_CharMap*)&g_DefaultUHCMapper; |
| case 950: |
| return (CFX_CharMap*)&g_DefaultBig5Mapper; |
| } |
| return NULL; |
| } |
